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Detecting and evaluating surface coating defects is important for marine vessel maintenance. Currently, the assessment is carried out manually by qualified inspectors using international standards and their own experience. Automating the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-21 Li Yu , Kareem Metwaly , James Z. Wang , Vishal Monga

This paper explores learned image compression based on traditional and learned discrete wavelet transform (DWT) architectures and learned entropy models for coding DWT subband coefficients. A learned DWT is obtained through the lifting…

Image and Video Processing · Electrical Eng. & Systems 2022-12-08 Ugur Berk Sahin , Fatih Kamisli

Automating the quality control of shot-blasted steel surfaces is crucial for improving manufacturing efficiency and consistency. This study presents a dataset of 1654 labeled RGB images (512x512) of steel surfaces, classified as either…

Computer Vision and Pattern Recognition · Computer Science 2025-04-30 Irina Ruzavina , Lisa Sophie Theis , Jesse Lemeer , Rutger de Groen , Leo Ebeling , Andrej Hulak , Jouaria Ali , Guangzhi Tang , Rico Mockel

A fast Discrete Cosine Transform (DCT) algorithm is introduced that can be of particular interest in image processing. The main features of the algorithm are regularity of the graph and very low arithmetic complexity. The 16-point version…

Information Theory · Computer Science 2022-12-29 Maxim Vashkevich , Alexander Petrovsky

The contour estimation of transparent fragments is very important for autonomous reassembly, especially in the fields of precision optical instrument repair, cultural relic restoration, and identification of other precious device broken…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Qihao Lin , Borui Chen , Yuping Zhou , Jianing Wu , Yulan Guo , Weishi Zheng , Chongkun Xia

A new thresholding strategy for the estimation of a deterministic image immersed in noise is introduced. The threshold is combined with a wavelet decomposition, where the wavelet coefficient of the image at any fixed value of the…

Statistics Theory · Mathematics 2010-05-10 S. C. Olhede

We present Deep Shape-from-Template (DeepSfT), a novel Deep Neural Network (DNN) method for solving real-time automatic registration and 3D reconstruction of a deformable object viewed in a single monocular image.DeepSfT advances the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-02 David Fuentes-Jimenez , David Casillas-Perez , Daniel Pizarro , Toby Collins , Adrien Bartoli

The discrete cosine transform (DCT) is a widely-used and important signal processing tool employed in a plethora of applications. Typical fast algorithms for nearly-exact computation of DCT require floating point arithmetic, are multiplier…

Hardware Architecture · Computer Science 2017-11-01 N. Rajapaksha , A. Madanayake , R. J. Cintra , J. Adikari , V. S. Dimitrov

Feature curves are largely adopted to highlight shape features, such as sharp lines, or to divide surfaces into meaningful segments, like convex or concave regions. Extracting these curves is not sufficient to convey prominent and…

Computer Vision and Pattern Recognition · Computer Science 2017-10-02 Maria-Laura Torrente , Silvia Biasotti , Bianca Falcidieno

With the increasing growth of technology and the entrance into the digital age, we have to handle a vast amount of information every time which often presents difficulties. So, the digital information must be stored and retrieved in an…

Multimedia · Computer Science 2012-08-15 Kamrul Hasan Talukder , Koichi Harada

In this study, radar signals were analyzed to classify grain surface types by using machine learning methods. Radar backscatter signals were recorded using a vector network analyzer between 18-40 GHz. A total of 5681 measurements of A scan…

Signal Processing · Electrical Eng. & Systems 2020-09-28 Hüseyin Duysak , Umut Özkaya , Enes Yiğit

Texture classification is an important and challenging problem in many image processing applications. While convolutional neural networks (CNNs) achieved significant successes for image classification, texture classification remains a…

Computer Vision and Pattern Recognition · Computer Science 2017-07-25 Shin Fujieda , Kohei Takayama , Toshiya Hachisuka

The objective of dense material segmentation is to identify the material categories for every image pixel. Recent studies adopt image patches to extract material features. Although the trained networks can improve the segmentation…

Computer Vision and Pattern Recognition · Computer Science 2024-02-29 Yuwen Heng , Srinandan Dasmahapatra , Hansung Kim

3D Gaussian Splatting (3DGS) has emerged as a powerful approach for novel view synthesis. However, the number of Gaussian primitives often grows substantially during training as finer scene details are reconstructed, leading to increased…

Image and Video Processing · Electrical Eng. & Systems 2026-05-13 Hung Nguyen , An Le , Truong Nguyen

The JPEG2000 standard defines the discrete wavelet transform (DWT) as a linear space-to-frequency transform of the image domain in an irreversible compression. This irreversible discrete wavelet transform is implemented by FIR filter using…

Hardware Architecture · Computer Science 2011-11-09 Sandro V. Silva , Sergio Bampi

The prosperity of deep learning contributes to the rapid progress in scene text detection. Among all the methods with convolutional networks, segmentation-based ones have drawn extensive attention due to their superiority in detecting text…

Computer Vision and Pattern Recognition · Computer Science 2022-08-23 Jingyu Lin , Jie Jiang , Yan Yan , Chunchao Guo , Hongfa Wang , Wei Liu , Hanzi Wang

Camouflaged object detection is a challenging task that aims to identify objects having similar texture to the surroundings. This paper presents to amplify the subtle texture difference between camouflaged objects and the background for…

Computer Vision and Pattern Recognition · Computer Science 2021-02-08 Jingjing Ren , Xiaowei Hu , Lei Zhu , Xuemiao Xu , Yangyang Xu , Weiming Wang , Zijun Deng , Pheng-Ann Heng

Mean texture depth (MTD) is pivotal in assessing the skid resistance of asphalt pavements and ensuring road safety. This study focuses on developing an automated system for extracting texture features and evaluating MTD based on pavement…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Bingjie Lu , Han-Cheng Dan , Yichen Zhang , Zhetao Huang

Typical convolutional networks are trained and conducted on RGB images. However, images are often compressed for memory savings and efficient transmission in real-world applications. In this paper, we explore methods for performing semantic…

Computer Vision and Pattern Recognition · Computer Science 2020-01-01 Shao-Yuan Lo , Hsueh-Ming Hang

Simultaneous Localization and Mapping (SLAM) is an essential technology for the efficiency and reliability of unmanned robotic exploration missions. While the onboard computational capability and communication bandwidth are critically…

Robotics · Computer Science 2026-01-09 Riku Suzuki , Ayumi Umemura , Shreya Santra , Kentaro Uno , Kazuya Yoshida
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